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[ Upstream commit8e13d96670] When building with extra warnings enabled, clang points out a mistake in the error handling: drivers/irqchip/irq-gic-v3-mbi.c:306:21: error: result of comparison of constant 18446744073709551615 with expression of type 'phys_addr_t' (aka 'unsigned int') is always false [-Werror,-Wtautological-constant-out-of-range-compare] if (mbi_phys_base == OF_BAD_ADDR) { Truncate the constant to the same type as the variable it gets compared to, to shut make the check work and void the warning. Fixes:505287525c("irqchip/gic-v3: Add support for Message Based Interrupts as an MSI controller") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20210323131842.2773094-1-arnd@kernel.org Signed-off-by: Sasha Levin <sashal@kernel.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.